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THREE-PHASE CURRENT MOTORS WITH TRANSISTOR CONVERTERS

C F Richelmann

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Abstract

Technical progress in the field of transistors has now made it possible not only to integrate the processing of signals but also to construct three-phase current motors with a rating control, supplied by converters. The writer discusses the characteristics of the asynchronous squirrel-cage rotor and the influence of the rating and torque control in the case of a power supply from a frequency converter; he then describes the structure and operation of converters for variable output frequency and voltage.

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What this paper is about

Technical progress in the field of transistors has now made it possible not only to integrate the processing of signals but also to construct three-phase current motors with a rating control, supplied by converters. The writer discusses the characteristics of the asynchronous squirrel-cage rotor and the influence of the rating and torque control in the case of a power supply from a frequency converter; he then describes the structure and operation of converters for variable output frequency and voltage.

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Available abstract

Technical progress in the field of transistors has now made it possible not only to integrate the processing of signals but also to construct three-phase current motors with a rating control, supplied by converters. The writer discusses the characteristics of the asynchronous squirrel-cage rotor and the influence of the rating and torque control in the case of a power supply from a frequency converter; he then describes the structure and operation of converters for variable output frequency and voltage.

Key concepts: Converters, Electrical engineering, Induction motor, Squirrel-cage rotor, Rotor (electric), Three-phase, Transistor, Power (physics)

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